[Haskell-beginners] Confusion over currying, , lambda, and closures

I have these three versions of addition addA x y = x + y addB x = \y -> x + y addC = \x -> \y -> x + y and all three add two arguments just fine

addA 2 3 5 addB 2 3 5 addC 2 3 5

but I can't see how addB and addC are actually accomplishing this. addA is currying, which I don't fully follow. addC I understand beta reduction-wise (\x -> \y -> x + y) 2 3 (\y -> 2 + y) 3 (2 + 3) 5 but I don't understand addB and what steps are happening currying/beta reduction-wise. Can someone break down the steps with addA and addB? LB